package com.yangyouli.unity_demo_server.util;

public class StringUtil {
	/**
	 * 将首字母变为小写
	 * @param str
	 * @return
	 */
	public static String firstWordToLower (String str) {
		String firstChar = str.substring(0, 1).toLowerCase();
		return firstChar + str.substring(1, str.length());
	}
}
